Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
GC

Greg Cullen — 3 Patents

CLClariant: 2 patents #237 of 540Top 45%
Amesbury, MA: #60 of 166 inventorsTop 40%
Massachusetts: #33,867 of 88,656 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Greg Cullen has been granted 3 US patents while listed as an inventor at Clariant. The first was granted in 2013 and the most recent in February 2020. Greg Cullen ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Greg Cullen in Amesbury, MA, US.

Patents per Year

Patents granted per year, 2013 to 2020Bar chart with a peak of 1 patents in 2013.peak 12013: 1 patents20132016: 1 patents20162020: 1 patents2020

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
10569256 Low cost oxidation catalysts for VOC and halogenated VOC emission control Zhongyuan Dang 2020-02-25
9327238 Method for removing CO, H2 and CH4 from an anode waste gas of a fuel cell and catalyst system useful for removing these gases Jon P. Wagner, Georg Anfang, Chandra Ratnasamy 2016-05-03
8475755 Oxidation catalyst and method for destruction of CO, VOC and halogenated VOC Zhongyuan Dang, Nirmal Singh, Martin Morrill 2013-07-02